8x+9=2x+21 what is the value of x in the equation?

98 points djdjsi zisksis sjsjsi sisksj sksjdj sksks sjsisj

for this case we have that by definition, the surface area of a cylinder is given by:

where:

r: it is the radius of the cylinder

h: it is the height of the cylinder

we can also rewrite it as:

where:

la: it's the lateral area

ba: area of the base

option a

5 feet of chain cost $9

so the answer is 1.80